Which angle should be considered for subcutaneous injections in a patient with low body fat?

Which angle should be considered for subcutaneous injections in a patient with low body fat?

• A. 30-60 degrees
• B. 90 degrees
• C. 45 degrees
• D. 15 degrees

Answer: (C)

Subcutaneous injections aim to place medication into the fatty tissue beneath the skin, not into muscle. When a patient has little fat, the tissue layer is thin, so you insert the needle at a shallower angle to keep the medication in the subcutaneous layer. About 45 degrees is the commonly recommended angle in this scenario because it helps ensure the needle reaches the correct depth with a typical short needle, reducing the risk of unintentionally delivering into muscle. A 90-degree angle could penetrate muscle in someone with little fat, and very shallow angles risk depositing in the dermis or not achieving consistent subcutaneous depth. So, 45 degrees is the best choice here.

Subcutaneous injections aim to place medication into the fatty tissue beneath the skin, not into muscle. When a patient has little fat, the tissue layer is thin, so you insert the needle at a shallower angle to keep the medication in the subcutaneous layer. About 45 degrees is the commonly recommended angle in this scenario because it helps ensure the needle reaches the correct depth with a typical short needle, reducing the risk of unintentionally delivering into muscle. A 90-degree angle could penetrate muscle in someone with little fat, and very shallow angles risk depositing in the dermis or not achieving consistent subcutaneous depth. So, 45 degrees is the best choice here.